Have any certified teachers tried to get experience verification forms from their Korean schools sent back to the USA for credit towards advanced certification from their state or a salary step with their local school district? If so, how did the process go?

I imagine hagowns don't count and international schools do, but I'm not sure that's right. Has anyone ever gotten a step for working in a Korean public school? So, I'd mostly be interested in the experiences of people who taught in public schools or private, FT programs that aren't cram schools. If you got a step, in what kind of school did you work.